--- nodeimageblock_old.module	2006-03-06 19:19:34.000000000 +0100
+++ nodeimageblock.module	2007-01-13 20:39:05.000000000 +0100
@@ -87,7 +87,7 @@ function _nodeimageblock_get_node_images
 		foreach($files as $key => $file){
 
 			// --- Is the file an image?
-			if(in_array($file->filemime, $image_mime)) {
+			if(in_array($file->filemime, $image_mime) && $file->list) {
 				$images[] = file_create_url($file->filepath);
 			}
 		}